First fun with the “V5OSDK aka ML505″ FPGA

Aug 31 2008

First fun with the “V5OSDK aka ML505″ FPGA

Posted by: ben in FPGA, tags: FPGA, VHDL

Today it was time to write some VHDL code for the new board. The result are some lines to drive the LCD (ks0066u chipset 4-Bit interface). It is quite easy to talk with such devices, they have only a 4 bit data bus, 1 RS (Register Select), 1 R/W (Read/Write) and 1 E (Read/Write Enable) Signal.

The first module is a low level module with a wishbone compliant interface, it is responsible for the generation of the right signal combinations to talk with the LCD. The second one consists of a loop to write the initialization sequence and characters to the LCD.

That’s all.

BTW.: If someone wants the code example, just write me an email.

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27 Responses to “First fun with the “V5OSDK aka ML505″ FPGA”

Jeff says: October 22nd, 2008 at 22:16

Hi, I am interested in the code example for writing on the LCD of the ML505 board. Thanks!

Jeff

Reply
Jason says: November 12th, 2008 at 20:49

Hi Ben, Can I also get a copy of your code example? Thank you!~

Best,
Jason

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Jeff says: December 19th, 2008 at 02:56

Hi, Here’s another way to drive the LCD using the Microblaze and GPIOs. Instructions and source code are on the page:

http://virtex5.blogspot.com/2008/10/microblaze-16×2-lcd-driver.html

Jeff

Reply
ben Reply:
December 19th, 2008 at 09:00
Hi Jeff,
nice page and tutorials. But for my flavour a state machine which drives the LCD is enough. A full-blown Microblaze and C code which drives the lcd, is to oversized and consumes to much slices.

ben

Reply
Claudio says: January 6th, 2009 at 02:22

Hi Ben,
I am also interested in your VHDL code, can I get a copy ?

Thanks a lot,
Claudio

Reply
codiert.org » Lot of code updates (LCD, Cypress USB, USB to Wishbone) says: January 9th, 2009 at 09:22

[...] which gave the possibility to connect wishbone compliant modules to USB. As testcase the wishbone lcd driver should help to get the interface stable. Some changes regarding the LCD clock as to be made [...]
Vlad says: February 23rd, 2009 at 01:09

Hi Ben,

Can I also get a copy of your code example?

Thank you,
Vlad

Reply
Fadi says: March 27th, 2009 at 16:06

Hi Ben,

I’m working with the ml507 board which has the same lcd I guess. I already wrote the lcd module in VHDL but would like a copy of your code to compare coding styles and functionality. it’s been a couple of years since I worked with hardware and would like to get experience from people with more exposure than myself.

Thanks in advance

Reply
Nouar says: March 30th, 2009 at 15:39

hi
i hope to send lcd code and any other important codew like uart (rs232) for me.
i need them very much.
thank you

Reply
Will says: April 17th, 2009 at 15:43

Hi Ben,

I am also interested in your VHDL code, can I get a copy ?

could you give me verilog code ?

Thanks a lot,

Reply
Stuart Reply:
April 29th, 2009 at 22:24
Hello,

Could you please send me your VHDL code as well?

thanks

Reply
julian says: June 17th, 2009 at 10:32

Hiya Ben,

I’d like to see your vhdl code for the lcd screen,
could you please send me a copy?

thanks

Reply
ali says: June 25th, 2009 at 13:21

hi
i m not using this type of xilinx card , mine is spartan-3e, i want to use the lcd screen with c code as i have embeded plasma cpu in it , so can you send me an exemple of for writing on the LCD

thanks

best regards

Reply
jalil says: July 14th, 2009 at 22:32

hello,

Could you please send me a copy of the LCD code, I’d like to give it a try.

Many thanks

Reply
jalil says: July 14th, 2009 at 23:33

in fact, where can i find the J8 connector pinout to the fpga..

or just which fpga pins are connected to which lcd pins

I looked everywhere, can’t find it.. they should have put this info on their guide but they didn’t

Reply
ben Reply:
July 15th, 2009 at 06:52
Have a look in your schematics to find the connected pins

Reply
zeefman says: July 15th, 2009 at 13:55

Hi,
i’m also interested in the vhdl code for the LCD!
many thanks.

Reply
Claudio says: July 23rd, 2009 at 19:32

hi
I am interested in the code example for writing on the LCD of the ML505 board.
Thanks

Claudio

Reply
Jose says: July 31st, 2009 at 18:00

Hi Ben,

Can I also get a copy of your code example?

Thank you,
Jose

Reply
Brandon says: January 23rd, 2010 at 17:07

Hi Ben,

This work is great. Can I get a copy of your code?

Thanks,
Brandon

Reply
Omar Lifschitz says: February 1st, 2010 at 19:08

Hi, Ben:
Do you have any information or example code regarding de DDR2 operation on the Virtex5.

Thanks in advance
Omar

Reply
Chris says: March 22nd, 2011 at 19:14

Hi Ben,

I have been searching for a code example for weeks to drive this LCD, and you’re the first one I have found with a reasonable and functional example. I would greatly appreciate it if you could send me the code.

Thanks,

Chris

Reply
Suleyman says: June 20th, 2011 at 19:54

Hi , Could you send me a LCD controller module? Thanks for your help. Best Regards.

Reply
Bill says: June 24th, 2011 at 14:10

Hello,
Can i get a copy too of your code? I’m working with ml507 an both lcd displays are the same i think

Reply
Leo says: January 2nd, 2012 at 22:23

Hi, Could you send me the VHDL example code to drive LCD?
Thanks.

Reply
Apfelstruhdl says: January 11th, 2012 at 10:18

could you send me the code, please?

Reply
KHANOB says: February 3rd, 2012 at 07:37

Hello,

Can I get a copy of your code? I’m working with ML509 LCD display for 2 weeks.But It’s still not work.

Reply

un.codiert.org

some thoughts of Benjamin Krill

First fun with the “V5OSDK aka ML505″ FPGA